uncontrolled

British  

/ ˌʌnkənˈtrəʊld /

adjective

1. not controlled or regulated; uncurbed

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Explanation

Do your little cousins go running wildly around the house every time they're visiting? Then they're uncontrolled — they aren't being restrained by anyone or anything. Anything uncontrolled isn't kept in check or held back. An uncontrolled scream is intense, because you're not trying to tamp it down. An uncontrolled balloon has blown loose and is flying around with no one holding its string. And scientifically speaking, an uncontrolled study or experiment doesn't use a so-called "control group," which is used for comparison and makes the study more valid.

Example Sentences

"And cancer is potentially exploiting that same principle, changing where in the genome these dynamics are more important to manipulate cell identity and encourage uncontrolled growth."

From Science Daily • Mar. 31, 2026

The remaining facade of the building is now in a state of "ongoing and uncontrolled collapse", according to the city council.

From BBC • Mar. 10, 2026

Authorities have blamed the scale of devastation partly on uncontrolled logging, and have revoked forestry permits in the disaster's wake.

From Barron's • Feb. 25, 2026

"These ancient bacteria are essential for science and medicine," Purcarea concluded, "but careful handling and safety measures in the lab are essential to mitigate the risk of uncontrolled spread."

From Science Daily • Feb. 21, 2026

And, by now, there wasn’t a single logistics aspect uncontrolled.

From "The Autobiography of Malcolm X" by Alex Malcolm X;Hailey

Related Words

• rampant
• unbridled
• unchecked
• uncontrollable
• unrestrained